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Simplifying f(x) = 9x2 + 9x + -28 Multiply f * x fx = 9x2 + 9x + -28 Reorder the terms: fx = -28 + 9x + 9x2 Solving fx = -28 + 9x + 9x2 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Divide each side by 'x'. f = -28x-1 + 9 + 9x Simplifying f = -28x-1 + 9 + 9x Reorder the terms: f = 9 + -28x-1 + 9x
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